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Sugden Masterclass IA-4 - Audiophile Integrated Amplifier

by Sugden
Original price ₹ 911,000 - Original price ₹ 911,000
Original price ₹ 911,000
₹ 911,000
₹ 911,000 - ₹ 911,000
Current price ₹ 911,000

The Masterclass IA-4 is Sugden's flagship and most popular integrated amplifier.  Weighing a substantial 20 kilos the IA-4 has a purposeful look and impressive build quality.

Plenty of input and output facilities are on offer including a high quality phono stage. The class A power output circuit has been upgraded from the A21 series with a larger power supply and improved soothing and output capacitors. Gold plated circuit boards, full relay switching and a precision input selector switch offer further detailing. The pre-amplifier section of the IA-4 is a bespoke design, with surprising clarity and detail.  The most noticeable feature is the ability to create a large performance with depth and height on any type of music. 


  • Inputs – Five line level operated with relays
  • Outputs – One pre-out (variable), one tape out, One pair of stereo multi-way binding posts
  • Remote Control – (RC5 handset included)


  • Line Input Sensitivity - 125mV @ zero attenuation for full output
  • Phono Input Sensitivity - 2mV (MM)
  • Power Output - 33 Watts both channels working
  • Frequency Response - +/-1dB 14Hz - 200kHz
  • Bandwidth - 6Hz - 300kHz
  • Signal to Noise - >84dB
  • Gross Weight (packed) - 20kgs
  • Dimensions - 165 x 430 x 440mm (HWD)